Fresh Orange Granita

Ingredients
1 cup water
1/2 cup sugar
1 Tbsp grated orange zest
2 oranges, for serving
2 cups freshly squeezed orange juice (takes about 6 oranges)

Directions
In a small saucepan, bring water, sugar and zest to a boil. Reduce heat and simmer until sugar dissolves. About 3 minutes.

Pour orange juice into a large bowl and stir in sugar syrup. Pour mixture into a 9x13 inch baking pan. Freeze until solid around the edges, about 3 hours. With a fork, scrape ice crystals from the edges of pan into center. Freeze, scraping mixture about every 30 minutes until icy throughout, about 1 1/2 hours longer. Scoop granita into hollowed out orange halves, freeze until ready to serve.